ike sitoresmi mulyo purbowati, Sujiman Sujiman, Ali Maksum


The focus of this study was to evaluate the effect of different drying methods and drying level on the bioactive compounds of roselle (Hibiscus sabdariffa L.)as antioxidant agent. The experiment has been conducted in cabinet dryer and by a direct exposure on sun light as weel as by using a green house effect panel with duration of driying: 1, 3, 5, 7 hours. The observed parameters were Colour, levels of anthocyanins,vitamin C, and free radical trapping capacity (DPPH). The data obtained were analyzed using analysis of variance (ANOVA) and further test DMRT (Duncant Multiple Range Test). The best results from these study was the cabinet drying with 7 h of drying time which have value for color (L, a*, b*), total anthocyanins, vitamin C, and antioxidant activity in respective order were 21.633; 6.80; 4.53; 3.22mg/100g; 1238.29mg/100g; 74,63%.


antioxidant;roselle;anthocyanins;vitamin C

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A.O.A.C. 2000. Official methods of analysis of the association of official chemists international, 17thed. The Association of Official Chemists International, Gaithersburg, USA

Abdel Moemin, AR. 2016. Effect of roselle calyces extract on the chemical and sensory properties of functional cupcakes. Food sci and Human Wellness 5:230-237

Ajayi, OA., Ola OO., dan Akinwunmi OO. 2017. Effect of drying method on nutritional composition, sensory and antimicrobial properties of Ginger (Zinginber officinale). International Food Res. J. 24(2): 614-620.

Azza A. Abou-arab, Ferial M, Abu - Salem Esmat A. 2011. Physico chemical properties of natural pigment (anthocyanin) extracted from roselle calyxes. J. of American Science7(7): 445-456

Arueya GL dan Akomolafe BO. 2014. Stability studies of microencapsulated anthocyanin of roselle (hibiscus sabdariffa) in Native Starch and its potential application in jam production. J.of Envirn. Sci. 8(7):112-122.

Buchner N, A Krumbein, S Rohn and L Kroh. 2006. Effect of thermal processing on the flavonols rutin and quercetin. Rapid Communication in Mass Spectrometry 20(21):3229-3235

Chumsri P, Sirichele A, Itharat A. 2008. Studies on the optimum condition for extraction and concentration of Roselle (Hibiscus sabdariffa Linn) extract. Songklanakarin, J.Sci. Technol. 30 ( Suppl) 133-139

Doughari JH. 2006. Antimicrobial activity of Tamarindus indica Linn. Trop J Pharmac Res. 5:597-603.

Ekechukwu VO. 2010. Solar Drying Technology: An overview Paper. Presented at FUTO Alternative Energy Conference, Federal University of Technology Owerri.

Erukainure OL, O Okafar, A Ajayi,O Obade,A Ogunji, T Okporua, Y Suberu, O Oke, A Ozumba, O Oluwole and G Elemo. 2015. Developed beverage from roselle calyx and selected fruits modulates B-cell function, improves insulin sensitivity and attenuates hyperlipidaemia in diabetic rats. Journal of basic and applied science 4: 307-313

Falade OS, Otemuyiwa IO, Oladipo A, Oyedapo OO, Akinpelu BA., Adewusi SRA. 2005. The chemical composition and membrane stability activity of some herbs used in local therapy for anemia. J. Ethnopharmacol, 102:15-22

Fasoyiro, SB. 2014. Physical, chemical and sonsory qualities of roselle water extract coagulated tofu compared with tofu from two natural coagulants. Official Journal of Nigerian Institute of food science and technology 32(2);97-102.

Fuleki T. Francis FJ. 1968. Quantitative methods for anthocyanins, 1. Extraction and determination of total anthocyanin in Cranberries, J. Food Sci. 33(1); 72-77

Husni A, Putra DR dan Lelana IYB. 2014. Aktivitas antioksidan Padina sp pada berbagai suhu dan lama pengeringan. JPB Perikanan 9(2):165-173.

Purbowati, ISM, Syamsu K, Warsiki E dan Rukmini HS. 2015. Evaluasi toksisitas, aktivitas antibakteri dan antioksidan komponen bioaktif rosela dengan variasi jenis pelarut. J Tek Ind Pert. 25(2) : 182-189.

Purbowati ISM, Syamsu K, Warsiki E dan Rukmini HS. 2016. Optimizationof phenol extraction from Roselle (Hibiscus sabdariffa) by micrawave asissted extraction as antibacterial and antioxidant agent. J Tek Ind Pert 26(1): 9-22.

Ruangsri P, Chumsri P, Anschalee S dan Arunpora I. 2008. Changes in quality and bioactive properties of concentrated Roselle (Hibiscus sabdariffa Linn) extract. As J Food Ag-In. 1(02):62-67.

Santosa B dan Dewi L. 2009. Kandungan antioksidan dan fenolik total pada ekstrak rosela dan aplikasinya pada pembuatan selai. Prosiding Seminar Nasional Sans dan Pendidikan Sans. IV(3):582-593.

Sari DK, Wardhani DH dan Prasetyaningrum A. 2012. Pengujian kandungan total fenol kappahycus alvarezzi dengan metode ekstraksi ultasonic dengan variasi suhu dan waktu. Jurusan teknik kimia fakultas teknik UNDIP. Prrosiding NST ke-3 tahun 2012. Fakultas teknik universitas Wahid Hasyim, Semarang.

Karismawati AS, N Nurhasanah, TD Widyaningsih. 2015. Pengaruh minuman fungsional jelly drink kulit buah naga merah dan rosella terhadap stres aksidatif. J Pangan dan Agroindustri 3(2): 407-416

Shahid, M and F Hussain. 2012. Chemical composition and mineral content of zingiber officinale and Alpinia allughas (Zingiberaceae) rhizomes. International hournal of Chemical and biochemical science 2:101-104




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